The probability of a randomly selected adult in one country being infected with a certain virus is 0.005 In tests for the​ virus, blood samples from 27 people are combined. What is the probability that the combined sample tests positive for the​ virus? Is it unlikely for such a combined sample to test​ positive? Note that the combined sample tests positive if at least one person has the virus.   The probability that the combined sample will test positive is? ​(Round to three decimal places as​ needed.)

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 33E: Find the probability of each event. Drawing 5 orange cubes from a bowl containing 5 orange cubes and...
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The probability of a randomly selected adult in one country being infected with a certain virus is
0.005
In tests for the​ virus, blood samples from
27
people are combined. What is the probability that the combined sample tests positive for the​ virus? Is it unlikely for such a combined sample to test​ positive? Note that the combined sample tests positive if at least one person has the virus.
 
The probability that the combined sample will test positive is?
​(Round to three decimal places as​ needed.)
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